Add back line whose removal somehow crept into prior patch

llvm-svn: 43627
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp
index 1e1c5ff..88d158a 100644
--- a/llvm/lib/Support/APFloat.cpp
+++ b/llvm/lib/Support/APFloat.cpp
@@ -2199,6 +2199,7 @@
         partCount++;
     } while (p <= D.lastSigDigit);
 
+    category = fcNormal;
     fs = roundSignificandWithExponent(decSignificand, partCount,
                                       D.exponent, rounding_mode);